I'm not sure if I'd be going "whoopy" to the opportunity of living in a frame house inside a greenhouse. I worked for nearly a decade in a greenhouse. They would be fairly comfortable for "open air" camping.
I don't know what all was said in the video and he lost me with the sewage treatment ...
The humidity would be very high which may not be conducive to a long life for the house. Heat would be saved for the home but the entire greenhouse would have to be heated at the very least - to melt winter snow. Glass breakage is a real danger, otherwise.
High energy use would occur during the summer when air conditioning and large fans would be needed for some serious cooling. An upstairs? Shoot. I bet those rooms would be cooking.
Our packing shed was attached on 3 sides to greenhouses but air was pulled through the packing shed and certainly, not the other way with air from the greenhouses coming in.
Similarly, I have thought of a home with a large greenhouse attached but they are very expensive to heat during winter months, especially this far north and with so little daytime sunlight.
The mass of the house must make some difference and it might be a favorable one.
On a warm, sunny day - say, above 80°f, it would help cool the greenhouse to close that roof vent. Air conditioning could then be started. Greenhouses become giant evaporative coolers with pads and sump pumps at one end and large exhaust fans at the other end of the building. If outdoor temperatures are near 100° it becomes difficult to keep things below, say, 85° and interior misting is often used. There is more than one way to experience brutal heat and humidity and there are benefits with having greenhouses in arid climates.
Coating the glass with whitewash used to be very common.
Why not cover the roof with solar panels instead and use the power to run heat pumps?
We're starting to think we want a heat pump. It would be good when the house is cool, but not cool enough for a big fire, and could be used as AC on the warmest summer days...